Hemant, I can understand that CF using Axis2 vs whatever CF9 used (Axis1, I guess?) would impact how CF publishes its own web services, but this shouldn't impact calling third party web services, surely? How does that make sense?

Adam, Consumption of the web service will also be impacted. The version decides which framework is used for generating the client side stubs.

DmitriD, could you please post the code used for testing. Where did you try to set the version? For consuming you should set the version in CFInvoke or CreateObject(). If you change the server level wsversion, it is used while publishing only.